1997 Jun 12 2
Philips Semiconductors Product specification
2 W BTL audio amplifier TDA8543
FEATURES
•Flexibility in use
•Few external components
•Low saturation voltage of output stage
•Gain can be fixed with external resistors
•Standby mode controlled by CMOS compatible levels
•Low standby current
•No switch-on/switch-off plops
•High supply voltage ripple rejection
•Protected against electrostatic discharge
•Outputs short-circuit safe to ground, VCC and across
the load
•Thermally protected.
GENERAL DESCRIPTION
The TDA8543(T) is a one channel audio power amplifier
for an output power of 2 W with an 8 Ω load at a 7.5 V
supply. The circuit contains a BTL amplifier with
a complementary PNP-NPN output stage and
standby/mute logic. The TDA8543T comes in a 16 pin
SO package and the TDA8543 in a 16 pin DIP package.
APPLICATIONS
•Portable consumer products
•Personal computers
•Telephony.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VCC supply voltage 2.2 5 18 V
Iqquiescent current VCC =5V −812mA
I
stb standby current −−10 µA
Pooutput power THD = 10%
RL=8Ω; VCC = 5 V 1 1.2 −W
RL=8Ω; VCC = 7.5 V −2.2 −W
RL=16Ω; VCC =9V −2.0 −W
THD total harmonic distortion Po= 0.5 W −0.15 −%
SVRR supply voltage ripple rejection 50 −−dB
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA8543T SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
TDA8543 DIP16 plastic dual in-line package; 16 leads (300 mil); long body SOT38-1